[one-users] vm unknown status when using ganglia information driver

[Romany Nageh]

 ihave installed opennebula 4.0.1on Centos6.4 and it working well but

when using ganglia as information driver with kvm virtualizatio driver

I have a  problems . First it is that the VM begins correctly  but soon
after they become to unknown state. The message at the log (vm.log) is:

VM running but it was not found. Restart and delete actions available or
try to recover it manually
New VM state is UNKNOWN

I can recovery the VM doing "onevm resubmit" but soon after it returns to
unknown state, although the machine is perfectly accessible and works well.

Thu Jun 27 17:43:07 2013 [VMM][I]: Successfully execute network driver
operation: post.
Thu Jun 27 17:43:07 2013 [LCM][I]: New VM state is RUNNING
Thu Jun 27 17:43:09 2013 [VMM][I]: ExitCode: 0
Thu Jun 27 17:43:09 2013 [VMM][I]: VM running but it was not found. Restart
and delete actions available or try to recover it manually
Thu Jun 27 17:43:09 2013 [LCM][I]: New VM state is UNKNOWN
Thu Jun 27 17:44:29 2013 [VMM][I]: ExitCode: 0
Thu Jun 27 17:44:29 2013 [VMM][I]: VM running but it was not found. Restart
and delete actions available or try to recover it manually
Thu Jun 27 17:44:39 2013 [LCM][I]: New VM state is UNKNOWN

also i foundthis error related to poll_ganglia
../../vmm/kvm/poll_ganglia:120: undefined method `each' for nil:NilClass
(NoMethodError)

could any one help me ?
thanks
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